论文标题
低能重型离子碰撞中的涡度
Vorticity in low-energy heavy-ion collisions
论文作者
论文摘要
我们通过使用超相关量子分子动力学（URQMD）模型研究了低能重型离子碰撞中的运动学和热涡度。我们探索他们的时间演变和空间分布。我们发现，初始涡度对冲突$ \ sqrt {s _ {\ rm nn}} $：随着$ \ sqrt {s _ {\ rm nn}} $的持续量，随着$ \ s的涡流增长，随着$ \ s的变化，$ \ s { nn}} \ sim 3-5 $ GEV，具体取决于中心性。
We study the kinematic and thermal vorticities in low-energy heavy-ion collisions by using the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) model. We explore their time evolution and spatial distribution. We find that the initial vorticities have a non-monotonic dependence on the collision energy $\sqrt{s_{\rm NN}}$: as $\sqrt{s_{\rm NN}}$ grows the vorticities first increase steeply and then decrease with the turning point around $\sqrt{s_{\rm NN}}\sim 3-5$ GeV depending on the centrality.
